A credit system
 

I don't know if it exist but I would like to have a system that would give credits for:

Starting a new thread

Making a post

Getting thanked (I use the Thank You hack instead of the reputation system)

Voting on a poll

Had refer someone

When he-she become a contributing member

etc

And also for only the Admin to be able to give credits for custom reasons like winning a contest, etc.

The other users will never give credits to each others, only the Admin could do that when custom event would happens and the rest would be automatic.

Theses credits would be like a bank and they could ?buy? some privilege or things with these credits. So I would also need for this system to give the admin the possibility to remove credits when people would use some to buy some things.

I really don't know what can or can not be done but I think it would really help my forum community and any other community btw. :D

Thanks for any help, I really love this site and have already A LOT of hacks installed on mine. :)